<title>Hydrogen storage in carbon nanostructures</title>

Abstract

Magnetization curves in the fields up to 10 köe measured for powders produced at the electric arc the sputtering of graphite-cobalt-nickel electrodes. It was ascertained that magnetic properties of powders essentially depend on the place of their deposition within a spray chamber. The deposit growing on the cathode is basically a diamagnetic material while the rest of the products after sputtering is ferromagnetic. Their ferromagnetism is conditioned by Co-Ni nanoparticles. Some of them are incapsulated into the carbon shell that preserves those particles from oxidation by air (up to 470 °C) and dissolution in a hydrochloric acid (at a temperature of 95 °C).